Year	current US$
1970	2001000000
1971	8256000000
1972	9107000000
1973	15878000000
1974	13990000000
1975	-6256000000
1976	17116000000
1977	22324000000
1978	25791000000
1979	17984000000
1980	-6331000000
1981	29809000000
1982	-14914000000
1983	-5751000000
1984	65405000000
1985	21824000000
1986	6571000000
1987	27149000000
1988	18482000000
1989	27693000000
1990	14546000000
1991	-394000000
1992	16328000000
1993	20814000000
1994	63785000000
1995	31174000000
1996	30799000000
1997	70927000000
1998	63719000000
1999	60816000000
2000	54544000000
2001	-38284000000
2002	19975000000
2003	14094000000
2004	64068000000
2005	57513000000
2006	68989000000
2007	33950000000
2008	-29241000000
2009	-150772000000
2010	53917000000
2011	46262000000
2012	71212000000
2013	105477000000
2014	84792000000
2015	140123000000
2016	39068000000
2017	32674000000
2018	56408000000
2019	72166000000
2020	-37568000000
2021	11670000000
2022	157306000000